Improvement in power-meters



Mx/ww@ m; y I@ We@ mmf Figt N. PETERS. FHOTO-LITHOGRAPHE. WASHINGTON. D, C.

identit ,glatte 5 wat y Vire.

JOHN A. BRADSIIAW, WILLIAM I-I. BROWN, AND .DARIUS WHITHED, OF'

LOWELL, MASSACHUSETTS.

13mm Patent No. 107,331, man Sapman 13, 1870.

Y IMPROVEMENT IN POWER-METERS.

-v-QN* The Schedule referred to in these Letters Patent and mal-ring part of the same.

reference being had to the annexed drawing making a part of this specification, and to the letters and figures of reference marked thereon.l

Figure l of the drawing is representation of a central vertical section of our invention;

Figure 2 is a section of the valve-chamber;

Figure 3 is a side view of the meter;`and

Figure 4 is a sectional view, showing the manner forth in our patent of July 20, 1869.

of tightening the packing. Y

Ourinventiou relates to a combined steam-engine and fluid power-metenand consists inthe construction and novel arrangement of the parts thereof', whereby motion is communicated to a shaftthrough thc medium of reciprocating segmental gearing, such` as we have shown and described in our Letters Pat'- ent No. 92,786, dated July 20, 1869.-

In the drawing- 'lhe letter A designates the piston-cylinder, made usually in two sections, secured by means of circular ilanches to a metallic ring, B, arranged to lit neatly the hollow piston D, which plays within it.

Above and below the ring B narrow circular fianch es l; D are formed 011 the inner side of the wall of the chamber A, designed to hold thepacking-rings c c.

Set-screws a a pass through the wall of the cylinder, and'scrvc to press up the springs l d against the packing, thus tightening the same.

As these set-screws are operated iom the outside,

they form a ready and convenient means for adj-usting the packing lwhile the machine is in motion.

E E represent standards, which support the shaft, to which motion is to be communicated, andserve, at the samciime, as guidesl for the piston-rod F.

G designates a standard, which serves to support the sliding rod c and the spring stops ff.

Secured to the sliding rod c is a horizontal arm, g, the ond of which is perforated to embrace the pistonrod, inz such a manner that the latter may slide freely within the opening.

Collars lzy lt are keyed firmly upon the piston-rod, and between the arm y and eachcollar h isa coiled spring, H, encircling the piston-rod, and designed to operate thc sliding rod c through the medium of 'the horizontal arm g.

Iivoted to the sliding' rod e is a l'eyer, le, provided with a spring pawl, l, designed-to operate the registering ratchet-wheel m and the valve-rod p.

K represent-s the valve-chamber;

L, the valve;

M, the inlet-pipe and N, the outlet.

n a designate catches, attached to the pistou-rod, and designed to release the spring-stops f f at the proper time to change the direction of the water or steam from one side ot' the hollow piston-head to the other.

R represents the shaft, to which rotary motion is transmitted S, the iiy-wheel thereof; and

T, the reciprocating toothed segments, engaging with the fast and loose wheels z z, provided4 with pawls, which operate in connection with the ratchetf' wheels y y, keyed to the shaft, in the manner set lhe machine above described forms anexcellent Huid-meter, and, when a head can be obtained, power may be transmitted through the medium ofthe piston-rod and its connections.

When steam is employed, the action is complete and satisfactory, and the power attained is believed to be greater than when the ordinary crank attach-V ment, with its concomitant dead-points, is employed.

In this application we do not desire to claim the toothed segments or the attendant gearing, whereby the shaft is rotated, this mechanism being fully secured by Letters Patent No. 92,786, dated July 20,'

1869; neither do we desire to claim an ordinary steam-cylinder as applied thereto; but

What wc claim as our invention, and desire tosccure by Letters Patent, is-

As an improvement upon our invent-ion for which Letters Patent No. 92,7 86 were granted, the powermeter or steam-engine herein described, having piston-cylinder A, with central ring B, packing-springs d, adjustable 'by means of set-screwsa, valve-chamber K, ratchet-register m, slide-rod e, with horizontal arm g, spring stops ff, coil springs H H, and adjustable catches o e, all constructed and arranged to operate in connection with the reciprocating segments 'I T, in the manner and for the purposes shown and described.

In testimony that we claim' the above, we have hereunto subscribed our names in the presence `of two witnesses.-

J (')HN A. BRADSHAW. WM. H. BROWN. DARIUS WHIIHED. Witnesses: Y l

GaAs. A. If. SWAN, lil-RANK :0. BUTTERFIELD. 

